A Sweet Deal for Streaming

I'd been considering getting one of these Chromecast devices - you can plug it into your TV and beam movies, YouTube, iPlayer other things from your Android phone or tablet.
Wuaki.tv, that are part of play.com (no idea where Wuaki comes from) have a deal where you can buy a series of Game of Thrones or The Sopranos for around £25 and get a Chromecast for free.
If anyone's interested, I'll post a Chromecast review in a few days when it arrives. I won't post a review of Game of Thrones as I'm the last person on the planet to have watched it.